Hey Mike,
This set-up rocks! I'm looking forward to seeing it all at LotO next month!
Oh... Per our telcon the other day, I'll bring a large shoe horn. We can
take turns using it... ;-)
Cheers!!
Jim
On Thu, May 15, 2008 at 4:11 PM, <rrengineer@dslextreme.com> wrote:
> Vigil,
> I have a 266 cam in my 1275 Bugeye, but just using a 266 profile will
> not always get the same results. Just like heart and lungs work
> together, you have to match the cam to the head work. Compression
> ratio, size of valves, valve lift, head porting all work together.
> You should consult with David Anton at APT what the best profile is
> to use for your engine. He even machines his own cams now to spec.
> He also has a dyno for un-installed motors and a flow bench for the
> head work he does.
> That said, I have an all out porting job on my head by David. He
> also specified to Gerard that built the short block to deck the block
> to within 5 thousands of TDC so he could control the compression
> ration by machining the combustion chambers in the head. I am using
> Rimflo valves and a bushed 1.5 rocker set for higher lift. I am also
> using the Maniflow Spridget intake manifold with a single HIF44 carb.
> All I can say is, "Wow!' The car now exceeds the capabilities of
> the tiny original 7 inch drums I have on the car. It goes like
> stink! You should also keep in mind what exhaust you are using. I
> have a header and the Maniflow Spridget exhaust which is larger in
> diameter than stock 1275 exhaust. All large rotating masses were
> balanced. I probably could have used a more radical cam, but the car
> idles slightly lumpy now. In any case the 266 is a good choice for
> the street, but if you rebuild the motor in all other areas
> completely stock you might not see the potential of this cam.
> Mike MacLean
> 60 Sprite
> 56 BN2
>
--
Cheers!!
Jim - 68 "Spridget" in Dodge City
Don't miss "50 Years of Spridgets" at Lake of the Ozarks, June 26-29, 2008!!
For info and registration... <http://www.Sprite-MidgetClub.org>
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